id
int64
1
735k
topic
stringclasses
11 values
difficulty
stringclasses
2 values
question
stringlengths
12
91
answer
stringlengths
1
11
reasoning
stringlengths
20
98
category
stringclasses
19 values
731,601
algebra
medium
Solve for x: x^2 - 5x - 14 = 0
x = 7, -2
Factor: (x - 7)(x - -2) = x^2 -(5)x + -14 = 0. So x = 7 or -2. Check sum = 5, product = -14.
quadratic
731,602
geometry
easy
Find the perimeter of a rectangle with length 89 and width 42.
262
Perimeter = 2*(length+width) = 2*(89+42) = 2*131 = 262.
rectangle_perim
731,603
algebra
easy
Solve for x: 8x + 26 = 90
8
Subtract 26 from both sides: 8x = 90-26=64. Then divide by 8: x = 64/8 = 8.
linear_equation
731,604
calculus
medium
What is the derivative of 8x^8 with respect to x?
64x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [8x^8] = 8*8*x^7 = 64x^7.
derivative
731,605
algebra
medium
Solve for x: x^2 - 25 = 0
x = -5, 5
Factor: (x - -5)(x - 5) = x^2 -(0)x + -25 = 0. So x = -5 or 5. Check sum = 0, product = -25.
quadratic
731,606
fractions
medium
What is 16/18 - 10/4? Give as simplified fraction.
-29/18
Common denominator 72. Numerator 64-180=-116. So -116/72 simplifies to -29/18.
fraction_operations
731,607
algebra
easy
Solve for x: 8x + 38 = 158
15
Subtract 38 from both sides: 8x = 158-38=120. Then divide by 8: x = 120/8 = 15.
linear_equation
731,608
number_theory
medium
What is the GCD (greatest common divisor) of 72 and 2?
2
Find greatest number dividing both 72 and 2. Divisors common, greatest is 2.
gcd
731,609
percentages
easy
What is 28% of 815?
228.2
Calculate 28/100 * 815 = 0.28*815 = 228.2.
percentages
731,610
algebra
medium
Solve for x: x^2 - 8x = 0
x = 8, 0
Factor: (x - 8)(x - 0) = x^2 -(8)x + 0 = 0. So x = 8 or 0. Check sum = 8, product = 0.
quadratic
731,611
percentages
easy
What is 39% of 112?
43.68
Calculate 39/100 * 112 = 0.39*112 = 43.68.
percentages
731,612
geometry
easy
Find the perimeter of a rectangle with length 21 and width 40.
122
Perimeter = 2*(length+width) = 2*(21+40) = 2*61 = 122.
rectangle_perim
731,613
fractions
medium
What is 5/10 * 19/11? Give as simplified fraction.
19/22
Multiply numerators: 5*19=95. Denominators: 10*11=110. Simplify by gcd 5 to get 19/22.
fraction_operations
731,614
percentages
easy
What is 48% of 778?
373.44
Calculate 48/100 * 778 = 0.48*778 = 373.44.
percentages
731,615
statistics
easy
What is the mean (average) of 79, 63, 73?
71.67
Mean = sum/count. Sum = 79+63+73=215. Count=3. Mean=215/3=71.67.
mean
731,616
arithmetic
easy
What is 54 * 19?
1026
Multiply: 54 * 19 = 1026.
basic_operations
731,617
algebra
medium
Solve for x: x^2 - 3x - 10 = 0
x = -2, 5
Factor: (x - -2)(x - 5) = x^2 -(3)x + -10 = 0. So x = -2 or 5. Check sum = 3, product = -10.
quadratic
731,618
roots
easy
What is the square root of 16?
4
Find number that when squared gives 16. 4*4=16, so sqrt(16)=4.
square_roots
731,619
fractions
medium
What is 19/5 * 20/9? Give as simplified fraction.
76/9
Multiply numerators: 19*20=380. Denominators: 5*9=45. Simplify by gcd 5 to get 76/9.
fraction_operations
731,620
algebra
medium
Solve for x: x^2 - 11x + 30 = 0
x = 5, 6
Factor: (x - 5)(x - 6) = x^2 -(11)x + 30 = 0. So x = 5 or 6. Check sum = 11, product = 30.
quadratic
731,621
number_theory
medium
What is the GCD (greatest common divisor) of 62 and 25?
1
Find greatest number dividing both 62 and 25. Divisors common, greatest is 1.
gcd
731,622
roots
easy
What is the square root of 64?
8
Find number that when squared gives 64. 8*8=64, so sqrt(64)=8.
square_roots
731,623
statistics
easy
What is the mean (average) of 7, 84, 79, 92?
65.5
Mean = sum/count. Sum = 7+84+79+92=262. Count=4. Mean=262/4=65.5.
mean
731,624
arithmetic
easy
What is 983 - 270?
713
Subtract: 983 - 270 = 713.
basic_operations
731,625
word_problems
easy
If you have 81 pencils and you buy 18 more pencils, how many pencils do you have in total?
99
Add initial 81 plus bought 18: 81+18=99.
addition_word
731,626
number_theory
medium
What is the GCD (greatest common divisor) of 29 and 82?
1
Find greatest number dividing both 29 and 82. Divisors common, greatest is 1.
gcd
731,627
calculus
medium
What is the derivative of 2x^2 with respect to x?
4x
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [2x^2] = 2*2*x^1 = 4x.
derivative
731,628
word_problems
easy
If you have 12 apples and you buy 1 more apples, how many apples do you have in total?
13
Add initial 12 plus bought 1: 12+1=13.
addition_word
731,629
arithmetic
easy
What is 504 / 24?
21
Divide: 504 ÷ 24 = 21 because 24*21=504.
division
731,630
arithmetic
easy
What is 71 + 73 * 16? Remember order of operations.
1239
Order of operations (PEMDAS): first 73*16=1168, then 71+1168=1239.
basic_operations
731,631
exponents
easy
What is 5^2?
25
5^2 means multiply 5 by itself 2 times: 5*5 = 25.
exponents
731,632
percentages
easy
What is 45% of 596?
268.2
Calculate 45/100 * 596 = 0.45*596 = 268.2.
percentages
731,633
number_theory
medium
What is the GCD (greatest common divisor) of 33 and 20?
1
Find greatest number dividing both 33 and 20. Divisors common, greatest is 1.
gcd
731,634
roots
easy
What is the square root of 1444?
38
Find number that when squared gives 1444. 38*38=1444, so sqrt(1444)=38.
square_roots
731,635
statistics
easy
What is the mean (average) of 76, 13, 72?
53.67
Mean = sum/count. Sum = 76+13+72=161. Count=3. Mean=161/3=53.67.
mean
731,636
arithmetic
easy
What is 49 - 1?
48
Subtract: 49 - 1 = 48.
basic_operations
731,637
statistics
easy
What is the mean (average) of 13, 51, 75, 69, 30?
47.6
Mean = sum/count. Sum = 13+51+75+69+30=238. Count=5. Mean=238/5=47.6.
mean
731,638
word_problems
easy
If you have 25 books and you buy 45 more books, how many books do you have in total?
70
Add initial 25 plus bought 45: 25+45=70.
addition_word
731,639
algebra
easy
Solve for x: 9x - 2 = -2
0
Add 2 to both sides: 9x = -2+2=0. Then x = 0/9 = 0.
linear_equation
731,640
arithmetic
easy
What is 854 - 496?
358
Subtract: 854 - 496 = 358.
basic_operations
731,641
algebra
easy
Solve for x: 19x - 32 = 215
13
Add 32 to both sides: 19x = 215+32=247. Then x = 247/19 = 13.
linear_equation
731,642
geometry
easy
Find the area of a circle with radius 46. Use pi=3.14159, round to 2 decimals.
6647.61
Area = pi*r^2 = 3.14159*46^2 = 3.14159*2116 = 6647.61.
circle_area
731,643
arithmetic
easy
What is 31 + 46 * 76? Remember order of operations.
3527
Order of operations (PEMDAS): first 46*76=3496, then 31+3496=3527.
basic_operations
731,644
number_theory
medium
What is the LCM (least common multiple) of 98 and 69?
6762
LCM = |98*69| / GCD(98,69). GCD=1, so LCM=6762/1=6762.
lcm
731,645
arithmetic
easy
What is 67 * 78?
5226
Multiply: 67 * 78 = 5226.
basic_operations
731,646
arithmetic
easy
What is 571 - 452?
119
Subtract: 571 - 452 = 119.
basic_operations
731,647
algebra
easy
Solve for x: 19x + 36 = -306
-18
Subtract 36 from both sides: 19x = -306-36=-342. Then divide by 19: x = -342/19 = -18.
linear_equation
731,648
roots
easy
What is the square root of 64?
8
Find number that when squared gives 64. 8*8=64, so sqrt(64)=8.
square_roots
731,649
exponents
easy
What is 6^4?
1296
6^4 means multiply 6 by itself 4 times: 6*6*6*6 = 1296.
exponents
731,650
exponents
easy
What is 10^2?
100
10^2 means multiply 10 by itself 2 times: 10*10 = 100.
exponents
731,651
arithmetic
easy
What is 19 + 11 * 43? Remember order of operations.
492
Order of operations (PEMDAS): first 11*43=473, then 19+473=492.
basic_operations
731,652
fractions
medium
What is 3/20 * 5/17? Give as simplified fraction.
3/68
Multiply numerators: 3*5=15. Denominators: 20*17=340. Simplify by gcd 5 to get 3/68.
fraction_operations
731,653
algebra
medium
Solve for x: x^2 + 12x + 32 = 0
x = -4, -8
Factor: (x - -4)(x - -8) = x^2 -(-12)x + 32 = 0. So x = -4 or -8. Check sum = -12, product = 32.
quadratic
731,654
geometry
easy
Find the perimeter of a rectangle with length 31 and width 70.
202
Perimeter = 2*(length+width) = 2*(31+70) = 2*101 = 202.
rectangle_perim
731,655
number_theory
medium
What is the GCD (greatest common divisor) of 63 and 37?
1
Find greatest number dividing both 63 and 37. Divisors common, greatest is 1.
gcd
731,656
arithmetic
easy
What is 2000 / 4?
500
Divide: 2000 ÷ 4 = 500 because 4*500=2000.
division
731,657
arithmetic
easy
What is 16124 / 58?
278
Divide: 16124 ÷ 58 = 278 because 58*278=16124.
division
731,658
percentages
easy
What is 13% of 422?
54.86
Calculate 13/100 * 422 = 0.13*422 = 54.86.
percentages
731,659
calculus
medium
What is the derivative of 6x^8 with respect to x?
48x^7
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [6x^8] = 6*8*x^7 = 48x^7.
derivative
731,660
calculus
medium
What is the derivative of 3x^5 with respect to x?
15x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^5] = 3*5*x^4 = 15x^4.
derivative
731,661
algebra
medium
Solve for x: x^2 + 13x + 30 = 0
x = -3, -10
Factor: (x - -3)(x - -10) = x^2 -(-13)x + 30 = 0. So x = -3 or -10. Check sum = -13, product = 30.
quadratic
731,662
arithmetic
easy
What is 171 + 324?
495
Add the two numbers: 171 + 324 = 495.
basic_operations
731,663
word_problems
easy
If you have 28 candies and you buy 15 more candies, how many candies do you have in total?
43
Add initial 28 plus bought 15: 28+15=43.
addition_word
731,664
exponents
easy
What is 8^5?
32768
8^5 means multiply 8 by itself 5 times: 8*8*8*8*8 = 32768.
exponents
731,665
algebra
easy
Solve for x: 17x + 44 = 265
13
Subtract 44 from both sides: 17x = 265-44=221. Then divide by 17: x = 221/17 = 13.
linear_equation
731,666
percentages
easy
What is 3% of 583?
17.49
Calculate 3/100 * 583 = 0.03*583 = 17.49.
percentages
731,667
arithmetic
easy
What is 4940 / 19?
260
Divide: 4940 ÷ 19 = 260 because 19*260=4940.
division
731,668
word_problems
easy
If you have 8 books and you buy 25 more books, how many books do you have in total?
33
Add initial 8 plus bought 25: 8+25=33.
addition_word
731,669
arithmetic
easy
What is 668 + 222?
890
Add the two numbers: 668 + 222 = 890.
basic_operations
731,670
algebra
medium
Solve for x: x^2 - 12x + 27 = 0
x = 3, 9
Factor: (x - 3)(x - 9) = x^2 -(12)x + 27 = 0. So x = 3 or 9. Check sum = 12, product = 27.
quadratic
731,671
arithmetic
easy
What is 391 - 94?
297
Subtract: 391 - 94 = 297.
basic_operations
731,672
arithmetic
easy
What is 514 + 338?
852
Add the two numbers: 514 + 338 = 852.
basic_operations
731,673
algebra
easy
Solve for x: 19x + 27 = 198
9
Subtract 27 from both sides: 19x = 198-27=171. Then divide by 19: x = 171/19 = 9.
linear_equation
731,674
geometry
easy
Find the area of a circle with radius 31. Use pi=3.14159, round to 2 decimals.
3019.07
Area = pi*r^2 = 3.14159*31^2 = 3.14159*961 = 3019.07.
circle_area
731,675
roots
easy
What is the square root of 1369?
37
Find number that when squared gives 1369. 37*37=1369, so sqrt(1369)=37.
square_roots
731,676
arithmetic
easy
What is 81 + 99 * 12? Remember order of operations.
1269
Order of operations (PEMDAS): first 99*12=1188, then 81+1188=1269.
basic_operations
731,677
arithmetic
easy
What is 963 - 743?
220
Subtract: 963 - 743 = 220.
basic_operations
731,678
arithmetic
easy
What is 91 + 140?
231
Add the two numbers: 91 + 140 = 231.
basic_operations
731,679
arithmetic
easy
What is 3351 divided by 21? Give answer to 2 decimal places.
159.57
Calculate 3351/ 21 = 159.5714, rounded to 2 decimals is 159.57.
division
731,680
word_problems
easy
If you have 79 candies and you buy 39 more candies, how many candies do you have in total?
118
Add initial 79 plus bought 39: 79+39=118.
addition_word
731,681
calculus
medium
What is the derivative of 7x^4 with respect to x?
28x^3
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [7x^4] = 7*4*x^3 = 28x^3.
derivative
731,682
exponents
easy
What is 3^3?
27
3^3 means multiply 3 by itself 3 times: 3*3*3 = 27.
exponents
731,683
exponents
easy
What is 12^4?
20736
12^4 means multiply 12 by itself 4 times: 12*12*12*12 = 20736.
exponents
731,684
arithmetic
easy
What is 691 + 575 * 2? Remember order of operations.
1841
Order of operations (PEMDAS): first 575*2=1150, then 691+1150=1841.
basic_operations
731,685
word_problems
easy
If you have 17 books and you buy 35 more books, how many books do you have in total?
52
Add initial 17 plus bought 35: 17+35=52.
addition_word
731,686
arithmetic
easy
What is 49 + 50 * 19? Remember order of operations.
999
Order of operations (PEMDAS): first 50*19=950, then 49+950=999.
basic_operations
731,687
arithmetic
easy
What is 53 + 462 * 79? Remember order of operations.
36551
Order of operations (PEMDAS): first 462*79=36498, then 53+36498=36551.
basic_operations
731,688
exponents
easy
What is 2^4?
16
2^4 means multiply 2 by itself 4 times: 2*2*2*2 = 16.
exponents
731,689
number_theory
medium
What is the GCD (greatest common divisor) of 100 and 25?
25
Find greatest number dividing both 100 and 25. Divisors common, greatest is 25.
gcd
731,690
calculus
medium
What is the indefinite integral of x^5 dx?
x^6/6 + C
Power rule for integration: integral x^n dx = x^(n+1)/(n+1) + C. So integral x^5 = x^6/6 + C.
integral
731,691
arithmetic
easy
What is 1444 / 38?
38
Divide: 1444 ÷ 38 = 38 because 38*38=1444.
division
731,692
arithmetic
easy
What is 44 * 30?
1320
Multiply: 44 * 30 = 1320.
basic_operations
731,693
arithmetic
easy
What is 37 * 97?
3589
Multiply: 37 * 97 = 3589.
basic_operations
731,694
algebra
easy
Solve for x: 11x - 6 = 181
17
Add 6 to both sides: 11x = 181+6=187. Then x = 187/11 = 17.
linear_equation
731,695
arithmetic
easy
What is 500 / 5?
100
Divide: 500 ÷ 5 = 100 because 5*100=500.
division
731,696
geometry
easy
Find the area of a rectangle with length 3 and width 39.
117
Area = length * width = 3*39 = 117.
rectangle_area
731,697
algebra
medium
Solve for x: x^2 - 16x + 63 = 0
x = 7, 9
Factor: (x - 7)(x - 9) = x^2 -(16)x + 63 = 0. So x = 7 or 9. Check sum = 16, product = 63.
quadratic
731,698
calculus
medium
What is the derivative of 3x^5 with respect to x?
15x^4
Power rule: d/dx [x^n] = n*x^(n-1). So d/dx [3x^5] = 3*5*x^4 = 15x^4.
derivative
731,699
roots
easy
What is the square root of 841?
29
Find number that when squared gives 841. 29*29=841, so sqrt(841)=29.
square_roots
731,700
arithmetic
easy
What is 4092 divided by 13? Give answer to 2 decimal places.
314.77
Calculate 4092/ 13 = 314.7692, rounded to 2 decimals is 314.77.
division